Fast Breeder Reactor
| Construction | |
| Workers |  200 |
| Electricity | None |
| Maintenance |  43.0 / 60  |
| Footprint | 45x21* |
| Required Research | Fast Breeder Reactor |
| Boost by Unity | Not Available |
| Designation | Power Production  |
| Variants | Nuclear Reactor Nuclear Reactor II |
The Fast Breeder Reactor is a machine that generates large amounts of 
Steam (Super) from Water and 
Core Fuel for use in generators. And also, the reactor can enrich 
Blanket Fuel to 
Blanket Fuel (Enriched), which is used in the production of Core Fuel. Considering the lower process, produced Blanket Fuels (Enriched) are more than spent Core Fuels.
Because of this, it is only necessary to produce enough initial Core Fuel from a Chemical plant II to begin the loop, as long as you are recycling the spent core fuel and enriched blanket fuel. Once this cycle is operating successfully, you will only need to make sure that you continue adding a small amount of Blanket Fuel, which can be easily made from a very small amount of 
Depleted Uranium or 
Yellow Cake.
Power is generated by passing the output Steam (Super) through Super-pressure Turbines, High-pressure Turbines, and Low-pressure Turbines with their output shaft connected to Power Generators, typically Tier 2 variants of each. A majority of the Water can subsequently be recovered for reuse using a Cooling Tower (Large).
Generated Steam (Super) can be also used to desalinate Seawater and produce Hydrogen.
Installation Instructions
In order to get up and running, the Fast Breeder Reactor requires about 40 Core Fuel which must be produced the hard/inefficient way by twice enriching uranium: Yellow Cake into 
Enriched Uranium (4%) into 
Enriched Uranium (20%). However, once it gets going, reprocessing the Spent Core Fuel and enriching Blanket Fuel can be used instead, which greatly reduce the uranium consumption.
For an effective steady state, arrange input priorities for Core Fuel as follows:
- Recovered from Spent Core Fuel in a Nuclear Reprocessing Plant (80% recovery rate)
- Made from Blanket Fuel (Enriched) in an Enrichment Plant (yields slightly more than enough to make up the remaining 20%)
- Made from Enriched Uranium (20%) in a Chemical Plant II (only at start)
Also, arrange input priorities for Blanket Fuel as follows:
- Recovered from Blanket Fuel (Enriched) as byproduct of Core Fuel recipe
- Made from Depleted Uranium in Chemical Plant II (if left over from regular Nuclear Reactor)
- Made from Yellow Cake in Chemical Plant II
Heat Exchange and Overheat
See Nuclear Reactor
Automatic Regulation
Enrichment of Blanket Fuel
Enrichment of Blanket Fuel is optional and does not affect reactor performance in the event that Blanket Fuel (Enriched) output fills up. There are three operating modes for enrichment, that each affect the fuel consumption rate in different ways:
- 1x: Enrich as much Blanket Fuel as Core Fuel used
- 0x: Doesn't enrich at all but cuts the use of Core Fuel in half
- 3x: Triples the enrichment rate but quarters the Steam (Super) produced (and
Water consumed).
Below are the recipes for all three operating modes at 1x and 4x reactor speed.
Recipes
Below are all the recipes, which this building is capable of producing. Note, that some of them may be locked behind Research, and not immediately available in your game.
